Nesnelerin interneti cihazları arasındaki iletişim güvenliğinin arttırılması

Today's rapidly evolving technology is contributing to the digitalization of all human life information. Producing the sensitive information by using small-sized devices and transmitting it with least cost has become a requirement. In order to meet the requirement, information must be transmitted by a secure communication system using wireless technologies, ensuring confidentiality, integrity, and availability. At this conjunction, Internet of Things (IoT) ecosystem provides a network allowing devices with limited resources to communicate with each other. Data processing has evolved into automated tasks due to the increasing number of IoT devices, in daily lives and business. However, lack of a precise standardization in communication and information security at design phase of the IoT systems cause weaknesses of secrecy. In our study, we aim to provide information security by eliminating the secrecy weaknesses in the communication between IoT sensors and gateways. In this context, a communication protocol has been proposed in our study to ensure information security against known attacks on IoT devices. The proposed protocol provides mutual authentication through five communication steps. The protocol and its security analyses are presented in detail. The designed protocol was tested against known attacks on IoT devices, with the formal verification tool Scyther. Test steps and results are presented in detail. Analysis has shown that the proposed protocol is resistant to known attacks and provides a high degree of information security.